“It is overwhelming,” Klum — who will join Howie Mandel, Howard Stern and Spice Girl Melanie Brown when AGT premieres this summer — told Celebuzzat the LA launch of her new active wear collection for New Balance on Thursday. “But it is so much fun at the same time!”

“I never know who’s going to show up next. [Every day] I’m looking at 35 different acts, from singing [to] juggling … Everyone is so different and unique.”